Extreme L26RO4Y - XM004-04

Extreme L26RO4Y - XM004-04

Technical Highlights

  • Power at RMS 250 watts, max. load capacity 500 watts, 4 ohms.
  • Frequency response ranges from 20 Hz to 1,000 Hz, resonance at 26 Hz.
  • Voice coil measures 55.88 mm, sensitivity is 86 dB.
  • More technical details
Regular price €369.00
Regular price €369.00 selling price €369.00
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ProductExtreme L26RO4Y - XM004-04

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Estimated delivery: Sep 17–Sep 22.
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datasheet
Regular price €369.00
Regular price €369.00 selling price €369.00

The Seas Extreme L26RO4Y - XM004-04 is a 10-inch (25.4 cm) Subwoofer from the Design By Seas Series. It features an aluminum diaphragm, a total suspension, and an extra-large magnet system. The impedance is 4 Ohm, the long-term power handling (RMS) is 250 watts, and the maximum power handling is 500 watts. The sensitivity is 86 dB (1 m/2.83 V), the frequency response is 20–1,000 Hz, the resonance frequency is 26 Hz, and the voice coil measures 55.88 mm in diameter. Maximum displacement (Xmax) is 15 mm, moving mass is 160 g, compliance is 0.24 mm/N, total quality factor Qts is 0.27 with Qms 3.94 and Qes 0.29. Additional specifications: DC resistance is 3.5 Ohm, inductance is 2.33 mH, Vas is 45.87329 l, magnet weight is 2339 g, outer diameter is 268.986 mm, cutout diameter is 235.966 mm, total depth is 151.384 mm, bolt circle diameter is 256.54 mm, and there are 8 mounting holes (item number L26RO4Y).

Features
  • 10-inch Subwoofer
  • Aluminum diaphragm
  • Extra-large magnet system
  • Total suspension
  • Impedance 4 Ohm
  • Long-term power handling (RMS) 250 watts
  • Power handling (max) 500 watts
  • Voice coil diameter 55.88 mm
  • Maximum displacement (Xmax) 15 mm
  • Series Design By Seas Series
  • Item number L26RO4Y
  • Mounting holes 8
Technical Specifications
  • Sensitivity (SPL at 1 m / 2.83 V) 86 dB
  • Frequency response 20–1,000 Hz
  • DC resistance (Re) 3.5 Ohm
  • Voice coil inductance (Le) 2.33 mH
  • Resonance frequency (Fs) 26 Hz
  • Mechanical quality factor (Qms) 3.94
  • Electrical quality factor (Qes) 0.29
  • Total quality factor (Qts) 0.27
  • Moving mass (Mms) 160 g
  • Compliance of the suspension (Cms) 0.24 mm/N
  • Equivalent volume (Vas) 45.87329 l
  • Magnet weight 2339 g
  • Outer diameter 268.986 mm
  • Total depth 151.384 mm
  • Cutout diameter 235.966 mm
  • Bolt circle diameter 256.54 mm

datasheet

Open data sheet

Frequently Asked Questions about Extreme L26RO4Y - XM004-04


What features does the Seas Extreme L26RO4Y Subwoofer have?

The Seas Extreme L26RO4Y - XM004-04 is designed for RMS continuous testing up to 250 watts, ensuring solid, powerful sound reproduction. The maximum power capacity reaches an impressive 500 watts, indicating that the subwoofer has significant power reserves during peak times. With a sensitivity of 86 dB at 1 m/2.83 V, the subwoofer can deliver impressive sound even in systems with moderate amplifiers. The frequency response ranges from 20 to 1,000 Hz, meaning the L26RO4Y can realistically reproduce deep bass.

What materials and construction features distinguish the L26RO4Y Subwoofer?

The Seas L26RO4Y Subwoofer features an aluminum diaphragm that supports robust and resonance-free sound reproduction. The total suspension improves vibration damping and minimizes distortion. An extra-large magnet system contributes to high performance and allows for precise voice coil alignment. The combination of these features delivers superior sound quality with clear and powerful tones.

What are the dimensions of the Seas L26RO4Y Subwoofer and how does this affect installation?

The Seas L26RO4Y Subwoofer has an outer diameter of 268.986 mm and a total depth of 151.384 mm. The cutout diameter is 235.966 mm, allowing installation in a variety of enclosures. With a bolt circle diameter of 256.54 mm and eight mounting holes, a stable installation is ensured. This custom design allows flexibility in placement, provided there is sufficient mounting depth.

What is the resonance frequency of the Seas Extreme L26RO4Y Subwoofer and what does it mean?

The resonance frequency of the Seas Extreme L26RO4Y is 26 Hz. This low frequency is advantageous for accurately reproducing deep bass and achieving impressive sound depth in the lower frequency range. For listeners, this means that the subwoofer is capable of reproducing bass-heavy music content with great clarity and minimal distortion, especially in movies or music with prominent bass lines.

What Thiele-Small parameters does the L26RO4Y have and how do they affect sound?

The L26RO4Y has the following Thiele-Small parameters: a total quality factor (Qts) of 0.27, mechanical quality factor (Qms) of 3.94, and electrical quality factor (Qes) of 0.29. These values indicate a high efficiency of the system, which ensures good interaction between electrical and mechanical design. The equivalent volume (Vas) is 45.87329 liters, which, combined with the compliance (Cms) of 0.24 mm/N, ensures minimal distortion in bass reproduction.

Which cars is the Seas L26RO4Y Subwoofer compatible with?

The compatibility of the Seas L26RO4Y Subwoofer with vehicles can be largely influenced by its specific dimensions. With an outer diameter of 268.986 mm and a total depth of 151.384 mm, it is adaptable for most common car audio situations. Conventional enclosures can usually be modified for this 10-inch subwoofer as long as the correct mounting depth is available. During installation, the eight mounting holes and the specific bolt circle diameter are advantageous for a precise fit.

What is the moving mass and its impact on the performance of the subwoofer?

The moving mass of the Seas L26RO4Y is 160 g. A higher moving mass can help produce more emphasis on low frequencies in the performance range of the subwoofer while simultaneously slowing down the transition to force takeovers at higher volumes. This means for listeners that the subwoofer can deliver massive, powerful bass notes when properly installed, while keeping distortion to a minimum. This contributes to a fuller and more dynamic bass reproduction during music playback.

What is the inductance of the Seas subwoofer and why is it important?

The inductance of the voice coil of the Seas subwoofer is 2.33 mH. This specific inductance helps to smooth the transition range of frequencies and simultaneously improves the responsiveness of the driver in the sub-sonic to mid-bass region. For audio enthusiasts, this means that the subwoofer remains stable in connections with amplifiers and maintains its qualitative sound characteristics across different frequency ranges without sacrificing precision or quality.

What is the Xmax value of the L26RO4Y and why is it significant?

The Xmax value of the L26RO4Y is 15 mm. Xmax describes the maximum linear displacement of the voice coil in one direction. A larger displacement allows the subwoofer to reproduce deep frequencies cleanly and without distortion even at higher volumes. Previous audio discrepancies or clipping are significantly minimized as a result. This is particularly advantageous if you enjoy listening to music loudly, as no unwanted sounds or side effects occur at low bass frequencies.

What specific advantages does the aluminum diaphragm of the L26RO4Y offer?

The aluminum diaphragm of the L26RO4Y offers the advantage of a particularly stiff yet lightweight diaphragm structure. This property helps to reduce unwanted resonances and increase sound precision, which is especially noticeable in the lower frequency ranges. Compared to other materials, the aluminum diaphragm ensures cleaner reproduction away from vibrations. This means that for listeners, the musical experience remains clear and differentiated without loss of bass intensity or frequency spread.

Manufacturer information/responsible person

Audio Components BV
Koen Pronk, Martijn Ouwerkerk
Peizerweg 97a
9727AJ Groningen
Netherlands

Contact: info@audio-components.com

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